/*
public class Main{

    String name;
    int age;
    static String country = "中国";

    public void introduce(){
        System.out.println("我叫"+this.name+"今年刚满"+this.age+"岁");
    }

    public Main(String name,int age) {
        this.name = name;
        this.age = age;
    }
    public static void main(String[] args){

        Main m = new Main("猪",18);

        m.introduce();

        System.out.println("国籍："+ Main.country);
    }
}

 */